37 results about "Error field" patented technology

An interlaced image processing module and corresponding method facilitate improved processing of interlaced motion images. In one embodiment, the interlaced image processing module receives image data frames having interlaced first and second fields and produces a reference field and error field. The reference field corresponds to the still image content of the interlaced frame, whereas the error field corresponds to the motion content of the interlaced frame, particularly the motion between fields. Motion between fields is thus represented in the error field, without redundant representation of the still image content provided by the first field. Where there is little motion between fields, the error terms will be small so the predictor preserves the coding efficiency provided by any auto-correlation in the image. Further, the interlaced image processing method does not rely upon pixel group classification, and thus avoids classification errors, and the loss of coding efficiency from still image content in motion classified blocks. Finally, problems presented by relative motion between fields are avoided, as are local artifacts. Another embodiment transforms the interlaced fields into frame data having a high frequency field and a low frequency field.

The invention discloses a method for evaluating the precision of a large-scale industrial photogrammetry system and a benchmark device. The method comprises the following steps: obtaining first three-dimensional coordinate information of a reflection target spot from the benchmark device by using a laser tracker, wherein the first three-dimensional coordinate information forms a space benchmark field; obtaining second three-dimensional coordinate information of the reflection target spot from the benchmark device by using the photogrammetry system, wherein the second three-dimensional coordinate information forms a space measurement field; and obtaining a space error field by the space benchmark field and the space measurement field. The method for evaluating the precision of a large-scale industrial photogrammetry system and the benchmark device obtain the space error field by the space benchmark field and the space measurement field, and analyze the error sources in the photogrammetry system by the space error field and further enhance the measurement precision of the photogrammetry system in large-scale industrial photogrammetry.

A calibration/surgical tool (90, 160) includes an electromagnetic sensor array (30) of two or more electromagnetic sensors in a known geometrical configuration. Electromagnetic tracking errors are characterized by a mapping of pre-operative absolute and relative errors based on a movement of a calibrated calibration/surgical tool (90, 160) through a pre not operative electromagnetic field. Using statistical mapping, a desired absolute error field (46) is measured either in the clinic as the part of daily quality control checks, or before the patient comes in or in vivo. A resulting error field (46) may be displayed to the physician to provide clear visual feedback about measurement confidence or reliability of localization estimates of the absolute errors in electromagnetic tracking.

The invention belongs to the precision mechanical error field and displays a device and a method for measuring a main shaft rotation error by using circular gratings and autocollimators. The measuringdevice is formed by a set of double reading head circular gratings installed on a main shaft, a plane mirror attached to a shaft bottom end and a set of self-made autocollimators. When the main shafthas a radial rotation error, a radial motion error measured by the circular gratings and a deflection error measured by the autocollimators are combined to calculate the radial rotation error at anypoint on the shaft, and then, the motion state of the shaft during a rotation process is analyzed. By using the structure of the invention, the influences of a main shaft circularity, surface roughness and the changes of a load on the main shaft on a measurement result can be eliminated. And simultaneously, the device can be used to realize the high precision positioning of a main shaft rotation angle.

An apparatus, method, and system for providing a fine adjustment for transducing head positioning in a hard disk drive (HDD). The apparatus, method, and system include reading a positioning error field wherein the resulting signal is a substantially sinusoidal position error signal (PES), filtering the PES to remove low frequencies and attenuate high frequencies, sample the filtered PES at a multiple of the channel frequency, filter the higher frequency harmonics, down sample the PES, and provide a signal proportional to the amplitude of the down sampled PES. This signal is the reference signal to the head positioning servo.

An interlaced image processing module and corresponding method facilitate improved processing of interlaced motion images. In one embodiment, the interlaced image processing module receives image data frames having interlaced first and second fields and produces a reference field and error field. The reference field corresponds to the still image content of the interlaced frame, whereas the error field corresponds to the motion content of the interlaced frame, particularly the motion between fields. Motion between fields is thus represented in the error field, without redundant representation of the still image content provided by the first field. Where there is little motion between fields, the error terms will be small so the predictor preserves the coding efficiency provided by any auto-correlation in the image.

A method and system for occlusion region detection and measurement between a pair of images are disclosed. A processing device receives a first image and a second image. The processing device estimates a field of motion vectors between the first image and the second image. The processing device motion compensates the first image toward the second image to obtain a motion-compensated image. The processing device compares a plurality of pixel values of the motion-compensated image to a plurality of pixels of the first image to estimate an error field. The processing device inputs the error field to a weighted error cost function to obtain an initial occlusion map. The processing device regularizes the initial occlusion map to obtain a regularized occlusion map.

A guaranteed two-wire interface in which upon determining that an operation is to be performed on a slave component, a master component transmits at least a portion of a corresponding frame to the slave component over the data wire. The master component repeats this detection and transmission each time it determines that an operation is to be performed on a slave component, whether the same component or a different slave component as the slave component previously communicated with. The frame structure itself may change depending on the operation to be performed. For example, one frame might include an extended address data field that includes extended address information that goes beyond a basic address field included in another frame. One frame may include reliability fields (such as cyclic redundancy checking field, an acknowledgement field, and/or an error field), whereas another frame having a different operation may not.

A spatial downscaling method for remotely sensed daily precipitation data comprises the following steps of firstly using a temporal-spatial downscaling scheme to indirectly realize downscaling of theremotely sensed daily precipitation data, and obtaining a preliminary downscaling result of the remotely sensed daily precipitation; secondly using an ensemble fusion method to obtain the result of daily precipitation fusion based on the monthly data, which integrates the results of daily precipitation downscaling of all remote sensing stations and daily observation in the month; then accumulatingthe daily precipitation fusion results to generate monthly or annual precipitation fusion results. The method of the invention can overcome the limitation of the prior art, considers the spatial non-stationary relationship between precipitation and auxiliary environmental factors and the temporal variation of daily precipitation, at the same time, the spatial resolution and precision of daily precipitation can be greatly improved by taking full account of the whole error field of the preliminary downscaled results of daily precipitation. In addition, the capability of detecting precipitationand non-precipitation areas can be significantly improved.

The invention provides a data regulation method. The method comprises the following steps that: when the processing of a data table by target business has errors, determining the error contents of thedata table; then, according to error types in the error contents, determining a repairing script template, wherein the repairing script template comprises a field to be repaired and a data record tobe repaired; taking an error field in the error contents as the field to be repaired, and taking the data record contained in an error range in the error contents as the data record to be repaired soas to obtain a target repairing script; and executing the target repairing script to repair the error field of the data record in the error range. Obviously, by use of the method, the data with errorsafter migration can be repaired, and in addition, the repairing method can use the preset repairing script template so as to be convenient and quick. The invention also provides a data regulation device which is used for guaranteeing the application and the implementation of the method in practice.

The invention belongs to the technical field of computer system software specialty. Based on an embedded development environment, by use of a software structure which is configured by a host end and achieved on a target machine end, acquisition of system memory and program information is supported according to a core dump type, corresponding core dump information is generated and stored, and the problems of error field capture, error information storage, error analysis difficulty and the like of an embedded system are better solved. According to the invention, the graphical configuration of the system is supported, and the graphical configuration interface is provided at the host end, so that the usability and the intuitiveness of the core dump configuration are improved; Core dump information is supported to be acquired from an operating system and specifically comprises a memory, a register state, a stack state, memory management information and various function call stack information during program running, so that the reliability and integrity of acquiring the core dump information are improved; Storage of the output core dump information is supported, the safety of the core dump information is improved, and then the error positioning and troubleshooting efficiency is improved.

The invention discloses a processor debugging method for extracting error field characteristic test excitation. The method comprises executing the original test excitation and records the original execution data stream in the running environment; according to the information of the designated suspected error instruction, searching the original execution data stream to obtain the hot instruction and obtaining the hot instruction list; the hot instruction list being analyzed one by one to retrieve the register information that the instruction depends on; searching data corresponding to all dependency information of all hot-spot instructions in the original execution data stream; converting hot instructions and corresponding dependency data into test code and compiling to generate executablefeature test excitation; running feature test incentives in the test environment, recording the running status of running feature test incentives or using debugging methods for debugging. The invention reduces the time for finding error points and reproducing errors in the debugging process by automatically extracting characteristic test incentives from the original incentives through a given flowand information, thereby reducing the time and energy spent in the whole debugging process.

The invention discloses a precision compensation method for a pen type graph plotter based on an error field. The method comprises the following steps: basic data of a structure of the error field is input through a calibration graph plotter, and an error distribution field of a working table of the graph plotter is constructed; all the geometric graph elements needed to be drawn are extracted to determine the size of a mapsheet, and one drawing work area which can contain all the graph elements is selected according to distribution of the error field to ensure that error distribution at the position is the least; according to a starting point, an end point and the geometric graph of each graph element, error compensation is respectively carried out, a deformation error of the working table generated by temperature difference between field temperature and calibration temperature is comprehensively considered to carry out temperature compensation at the same time; and subsequent format conversion and drawing plotting are carried out on a file after being compensated twice. The invention basically eliminates influence of aging of the graph plotter and working field temperature to the drawing accuracy, enhances the drawing efficiency of the graph plotter, prolongs the service life of the graph plotter, and reduces the maintenance cost and the repair cost of the graph plotter.

The invention relates to a machining error knowledge base system. The machining error knowledge base system comprises a human-computer interaction interface; the human-computer interaction interface comprises a machining error knowledge construction interface and a machining error knowledge acquisition interface; an expert from a machining error field and knowledge from a machining error knowledge source are converted into a production rule by using a machining error knowledge acquisition mechanism; the production rule is stored into a machining error knowledge base through a knowledge base management system; a user submits a machining error fact to a synthesis database through a machining error knowledge acquisition interface of the human-computer interaction interface; an inference machine is used for carrying out matching processing on the machining error fact submitted by the user in the synthesis database and an antecedent of the production rule in the machining error knowledge base, and then a consequent of a found matched rule is considered as an inference conclusion which is then stored to the synthesis database; the user acquires the inference conclusion through the machining error knowledge acquisition interface. The machining error knowledge base system has the advantages of favorable reliability, expandability, intelligence and the like.